Deluxe equatorial mount with wireless control
The SXD2 is the deluxe type of thSX2 equatorial mount in response to higher precision tracking and mounting larger optical tube and photographic equipment. A polar alignment scope comes as standard for serious astrophotographers.
Phone and iPad/Tablet Control
This is a high precision equatorial mount with improved performance in every details from raw materials, number of bearings and cutting and processing every parts on the entire process. The equatorial mount is supplied with the wireless unit which allows you to make your smartphone or tablet as controller for celestial navigation as high precision tracking.
Wireless celestial navigation
STAR BOOK Wireless App inheriting the DNA of popular STAR BOOK TEN Controller
If you tap the celestial object you want to see on the star chart, it will be automatically slew into the field of view and tracking will start. Following the display of the STAR BOOK TEN controller, which has been highly evaluated for its comfortable operability, even existing STAR BOOK TEN users can use it without any discomfort.
Increased loading capacity from 12kg (SX2 equatorial mount) to 15kg
Rigidity and precision have been improved by changing the right ascension and declination rotation axis from aluminium alloy to thick steel, and changing the gear that is the key to the drive from aluminium to brass. Consequently the loading weight has also increased from 12kg of the SX2 equatorial mount to 15kg, making it possible to replace with a larger optical tube and add a SLR camera, CMOS camera, etc.
High precision for smoother motion.
A variety of parts of the mount have been improved such as by adding bearings to the right ascension, declination axes and worm screws, and reducing the eccentricity of the worm screw, and lapping (polishing) has been performed along with the entire circumference of the worm wheel to achieve extremely smooth motion.
Pulse motors improve stability and response of motions
Precision pulse motor (stepping motor) with micro-step motion control that drives at 250 pulses/second is used instead of the conventional DC motor offering very smooth control from low speed to high speed, and response to operation improved.
Easy-to-use polar alignment scope
It is a device that allows high-precision installation of equatorial mount with easy operation (for the northern and southern hemispheres). Built-in scale that shows the starry sky near the north celestial pole and south celestial pole).
The scale itself glows red, so dark stars don't get lost in the background. All adjustments can be made while looking through the polar alignment scope, making it very convenient in dark places. The brightness of the scale is adjustable in 8 steps, so you can use it at your preferred brightness. In addition, it will automatically turn off in 1 to 2 minutes (gradual dimming), and you can prevent forgetting to turn it off after use
Rationality based on mechanics: weightless structure (reduction of moment load)
The weightless structure cultivated in the SX series was inherited. By concentrating the main weight-bearing parts such as the motor, worm shaft, and worm wheel on the weight side, and shortening the distance from the fixed point to the mounting block (the place where the equipment is mounted), advantageous structure in terms of dynamics is adopted.
You can balance the weight with the loading equipment with less counterweight. Depending on the weight of the loading equipment, counterweight less is also possible.
Retractable counterweight shaft convenient for setup and withdrawal of equipment
Stainless steel with excellent corrosion resistance is used for the counterweight shaft. Retractable type that can be stored in the equatorial mount body allows speedy setup. You can use the counterweight common to the SX series of 20 mm in diameter.
Stainless steel with excellent corrosion resistance is used for the counterweight shaft. Retractable type that can be stored in the equatorial mount body allows speedy setup. You can use the counterweight common to the SX series of 20 mm in diameter.
Specifications
Equatorial Mount
| Specifications | SXD2 equatorial mount |
|---|---|
| R.A. slow motion | Worm and wheel gears with 180-tooth whole circle micro movement, dia. 72mm, brass |
| DEC slow motion | Worm and wheel gears with 180-tooth whole circle micro movement, dia. 72mm, brass |
| Worm shaft | Dia. 9mm, made of brass |
| R.A. axis | Dia. 40mm, carbon steel |
| DEC axis | Dia. 30mm, carbon steel |
| Number of bearings | 9 pieces |
| Counterweight bar | Dia. 20mm stainless steel, retractable |
| Polar alignment scope | Built-in 5x20mm, 10°field of view, 3-star alignment system, variable intensity illuminated reticle with auto turn-off, brightness adjustable in 8 steps, dark field illumination, setting accuracy within 3-arc minutes. |
| Azimuth adjustment | Fine adjustments by double screws with knob, about 1.2 degrees per rotation, adjustable range ±7 degrees. |
| Altitude adjustment | Latitude adjustable between 0 degree and 70 degrees (divided into high, middle and low altitude zones) with 2 degree increments, and adjustable ±15 degrees per zone, fine adjustment by tangent screw with knob, about 0.8 degrees per location. |
| Motor drive | Pulse motors with micro-step motion control (250pps) |
| Slewing / Tracking | Automatic slewing by wireless unit via smartphone (free app), 1000x of sidereal rate at max slewing speed, high-precision tracking |
| Loading capacity | 15kg (375kg-cm torque load at 25cm from the cross point of the RA and DEC axes. |
| Controller cable port | D-SUB 9 PIN male |
| Power port | DC12V EIAJ RC5320A Class4 Center-plus |
| Working voltage / electrical consumption | SXD2WL+Wireless unit : DC12V / 0.3～2.0A（loading 10kg), 0.4～2.2A（loading 15kg：max load） |
| Size | 343×360×128mm |
| Weight | Approx. 9.2kg（excl. counterweights） |
| Counterweight | 1.9kg×1, 3.7kg×1 |
| Optional accessories | ASG-CB90 tripod, SXG-HAL130 tripod, SXG half pillar, SXG-P85DX pillar, power supply |
Wireless Unit
| Type of instruments | WiFi controller unit |
|---|---|
| CPU | 32bit CISC Processor 120MHz |
| Controller power port | D-SUB 9PIN male |
| Autoguider port | 6-pole 6-core modular jack (for external autoguider) |
| WiFi function | Using smartphone as a user interface with the app STAR BOOK Wireless |
| App operating environment | Supported OS: Android 6 or higher, iOS 9.0 or higher*・Wireless LAN standard: IEEE 802.11b/g/n・Data encryption method: WPA2-PSK *Even if you meet the conditions, you may not be able to use it. Please be sure to check the operation of the application in advance when using it. |
| Power supply | Supplied from the mount |
| Operating voltage / consumption | DC12V 0.1A(max) |
| Operating temperature | 0～40℃ |
| Others | Version-up with wireless LAN |
Included accessories
- Wireless unit
- SX counterweight 1.9kg x 1, 3.7kg x 1
- Allen wrench 5mm, 1.27mm (each 1 piece)
- Cigarette-lighter plug cord SX
- Instruction manual
